The Virtual Reality computer has trapped every tester who has entered the Virtual Reality world. Only Murphy can rescue them, by collecting all of the Infotrons that make up the computer's detonation code, and setting it off.

Greenface takes elements of Boulderdash, such as tunneling skills and boulders, and adds a futuristic twist, offering an experience that will test both your wits and your reflexes.

The game includes more than ninety increasingly difficult levels of non-violent gameplay.